CN106803726B - Low-frequency vibration electromagnetic energy collector - Google Patents
Low-frequency vibration electromagnetic energy collector Download PDFInfo
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- CN106803726B CN106803726B CN201510843710.5A CN201510843710A CN106803726B CN 106803726 B CN106803726 B CN 106803726B CN 201510843710 A CN201510843710 A CN 201510843710A CN 106803726 B CN106803726 B CN 106803726B
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- 230000005291 magnetic effect Effects 0.000 claims abstract description 59
- 230000005284 excitation Effects 0.000 claims abstract description 16
- 230000006698 induction Effects 0.000 claims abstract description 11
- 238000005520 cutting process Methods 0.000 abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 44
- 229910052742 iron Inorganic materials 0.000 description 22
- 239000000463 material Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000005672 electromagnetic field Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- UMIVXZPTRXBADB-UHFFFAOYSA-N benzocyclobutene Chemical compound C1=CC=C2CCC2=C1 UMIVXZPTRXBADB-UHFFFAOYSA-N 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
- H02N2/186—Vibration harvesters
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Abstract
The present invention provides a kind of low-frequency vibration electromagnetic energy collectors, including energy harvester shell, cantilever beam long slab, cantilever beam short slab, collision mass block, magnetic field generating member and multiturn coil；Vibration environment provides vibrational excitation to the energy harvester shell, the cantilever beam long slab is vibrated with the cantilever beam short slab with the vibrational excitation simultaneously, the collision mass block collides to the predetermined position of the cantilever beam long slab, the cantilever beam long slab is set to generate the vibration close to itself intrinsic frequency, the multiturn coil is vibrated with frequency identical with the cantilever beam long slab, cutting magnetic induction line, the electric signal of generation.Electromagnetic energy collector of the invention realizes the collection of low-frequency vibration electromagnetic energy, and collects bandwidth by way of collision to greatly improve the low frequency energy of electromagnetic type cantilever beam structure.
Description
Technical field
The invention belongs to energy collection technology fields, are more particularly to a kind of low-frequency vibration electromagnetic energy collector.
Background technique
Vibration is a kind of basic physical phenomenon of nature.By vibrational energy be converted into electric energy in the way of have for collection of energy
It is a variety of, such as piezoelectric type, condenser type and electromagnetic type etc..Wherein capacitative energy collection needs to be separately provided preliminary filling power supply, piezoelectricity
Formula collection of energy work is complicated.
For electromagnetic type collection mode, as device architecture micromation causes device intrinsic frequency to be significantly greatly increased, therefore lead
The collection of energy of low-frequency vibration, the especially less than vibration frequency of 60Hz are caused, there are collection of energy industrialization to realize bottleneck.
Therefore being badly in need of a kind of technical solution can effectively realize that low-frequency vibration electromagnetic energy is collected, while work processed and knot
Structure is simple.
Summary of the invention
The technical problem to be solved by the present invention is to how effectively realize that low-frequency vibration electromagnetic energy is collected, while work processed
It is simple with structure.
In order to solve the above technical problem, the present invention provides a kind of low-frequency vibration electromagnetic energy collector, the low frequency vibration
Dynamic electromagnetic energy collector includes energy harvester shell, cantilever beam long slab, cantilever beam short slab, collision mass block, magnetic field generation
Part and multiturn coil；
The inner surface of the one side of the energy harvester shell, the cantilever are fixed in one end of the cantilever beam long slab
The other end of beam length plate is fixed with the multiturn coil；The fixed cantilever beam long slab is fixed in one end of the cantilever beam short slab
Side inner surface, the cantilever beam short slab is located at the surface of the cantilever beam long slab, and the cantilever beam short slab with
The cantilever beam long slab is parallel, and the lower face of the other end of the cantilever beam short slab is fixed with the collision mass block, described to touch
Mass block is hit apart from the cantilever beam long slab preset distance；The magnetic field generating member is fixed on the interior of the energy harvester shell
Surface, and the magnetic induction line of the magnetic field generating member is cut when multiturn coil movement；
Vibration environment provides vibrational excitation to the energy harvester shell, and the cantilever beam short slab is with the vibrational excitation
It vibrates simultaneously, the collision mass block collides to the predetermined position of the cantilever beam long slab, makes the length of cantilever
Plate generates the vibration close to itself intrinsic frequency, and the multiturn coil is vibrated with frequency identical with the cantilever beam long slab,
Cutting magnetic induction line generates electric signal.
Preferably, the low-frequency vibration electromagnetic energy collector further includes conducting wire, and the conducting wire and the multiturn coil connect
It connects, the electric signal export for generating the multiturn coil.
Preferably, the low-frequency vibration electromagnetic energy collector further includes load resistance, and the load resistance passes through described
Conducting wire is in parallel with the multiturn coil.
Preferably, where the cantilever beam long slab is fixed on it at geometric center position of side.
Preferably, the length of the cantilever beam long slab is greater than the length for stating cantilever beam short slab.
Preferably, the intrinsic frequency of the cantilever beam long slab is greater than the intrinsic frequency of the cantilever beam short slab, the cantilever
Frequency of the intrinsic frequency of beam short slab close to the vibrational excitation.
Preferably, the intrinsic frequency of the cantilever beam long slab is medium-high frequency, and the frequency of the vibrational excitation is low frequency.
Preferably, the magnetic field generating member includes two pieces of permanent-magnet blocks, and two pieces of permanent-magnet blocks are individually fixed in
The inner surface of the top surface of the energy harvester shell and the inner surface of bottom surface, and two pieces of permanent-magnet blocks are located at
The surface and underface of the multiturn coil.
Preferably, the magnetic field generating member is superimposed by one piece or more of permanent-magnet block and is formed, and the magnetic field generating member is solid
Due on the inner surface of the side opposite with the side of the fixation cantilever beam long slab, and the magnetic field generating member and described outstanding
The fixed position of arm beam length plate is corresponding.
Preferably, the multiturn coil is round or rectangle.
The present invention provides a kind of low-frequency vibration electromagnetic energy collector, electromagnetic energy collector of the invention realizes low
Eigentone of the frequency vibration mode to the conversion of medium-high frequency mode of oscillation close to wherein cantilever beam long slab, in combination with movement
Multiturn coil cutting magnetic induction line generate electric signal, realize low-frequency vibration electromagnetic energy collect, and by way of collision come
The low frequency energy for greatly improving electromagnetic type cantilever beam structure collects bandwidth.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the low-frequency vibration electromagnetic energy collector of a preferred embodiment of the invention；
Fig. 2 is the perspective view of the low-frequency vibration electromagnetic energy collector of a preferred embodiment of the invention；
Fig. 3 is the structural schematic diagram of the low-frequency vibration electromagnetic energy collector of another preferred embodiment of the invention；
Fig. 4 is the perspective view of the low-frequency vibration electromagnetic energy collector of another preferred embodiment of the invention；
Fig. 5 A, 5B are the schematic cross-section of the multiturn coil of low-frequency vibration electromagnetic energy collector of the invention
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawings and examples.Following embodiment is for illustrating this hair
It is bright, but cannot be used to limit the scope of the invention.
A kind of low-frequency vibration electromagnetic energy collector, as shown in Figure 1, 2, the low-frequency vibration electromagnetic energy collector includes
Energy harvester shell 1, cantilever beam long slab 2, cantilever beam short slab 10, collision mass block 9, magnetic field generating member 7 and 3 and multiturn line
Circle 8.The inner surface of the one side of the energy harvester shell 1, the cantilever beam are fixed in one end of the cantilever beam long slab 2
The other end of long slab 2 is fixed with the multiturn coil, it is preferable that multiturn coil is fixed on the upper of the other end of cantilever beam long slab 2
Plate face；The inner surface of the side of the fixed cantilever beam long slab 2, the cantilever beam are fixed in one end of the cantilever beam short slab 10
Short slab 10 is located at the surface of the cantilever beam long slab 2, i.e. arm beam short slab 10 is fixed on the side for fixing the cantilever beam long slab 2
Central area position on the upper side, and the cantilever beam short slab 10 is parallel with the cantilever beam long slab 2, the cantilever beam short slab
The lower face of 10 other end is fixed with the collision mass block 9, and the collision mass block 9 is pre- apart from the cantilever beam long slab 2
Set a distance, it is preferable that the preset distance can be adjusted according to actual needs；The magnetic field generating member 7 and 3 is fixed on described
The inner surface of energy harvester shell 1, and the magnetic induction line of the magnetic field generating member is cut when the movement of the multiturn coil 8, i.e.,
When multiturn coil 8 moves, the electromagnetic field that permanent-magnet block 3,7 generates needs to cut in the geometry face of multiturn coil 8.It is preferred that
Ground, above-mentioned preset distance are slight distance.
Vibration environment provides vibrational excitation to the energy harvester shell 1, and the cantilever beam short slab 10 is with the vibration
Excitation is vibrated, and the cantilever beam long slab 2 may vibrate simultaneously with the vibration of shell 1 at this time, it is also possible to due to shell 1
Vibration frequency is too low cannot to make cantilever beam long slab 2 with shaking.The collision mass block 9 with cantilever beam short slab 10 vibration
It moves and vibrates, to collide to the predetermined position of the cantilever beam long slab 2, generate the cantilever beam long slab 2 close to it
The inherently vibration of frequency, be fixed on the multiturn coil 8 of 2 other end of cantilever beam long slab with the cantilever beam long slab 2
Identical frequency vibration, the magnetic induction line that cutting magnetic field generating elements 7,3 generates generate electric signal, realize to low-frequency vibration energy
It collects.The electric signal of generation can store, naturally it is also possible to be directly connected to use on power device.Wherein, above-mentioned predetermined position
Can according to the actual situation, the length by adjusting cantilever beam long slab 2 and cantilever beam short slab 10 is adjusted.
Above-mentioned electromagnetic energy collector realizes low-frequency vibration mode to the close wherein cantilever of medium-high frequency mode of oscillation conversion
The eigentone of beam length plate generates electric signal in combination with the multiturn coil cutting magnetic induction line of movement, realizes low-frequency vibration
Electromagnetic energy is collected, and greatly improves the low frequency energy collection belt of electromagnetic type cantilever beam structure by way of collision
It is wide.
Further, the low-frequency vibration electromagnetic energy collector further includes conducting wire 4,6, the conducting wire 4,6 with it is described more
Circle coil 8 connects, the electric signal export for generating the multiturn coil 8.The low-frequency vibration electromagnetic energy collector is also
Including load resistance 5, the load resistance 5 is in parallel with the multiturn coil 8 by the conducting wire 4,6, as shown in Figure 1.When not having
When having Lorentz force coupled vibrations mode, the resistance value of load resistance 5 close to multiturn coil 8 resistance value when, collection is averaged
Energy is maximum.
Further, where the cantilever beam long slab 2 is located at but is not limited to it at geometric center position of side.As long as outstanding
The fixed position of arm beam length plate 2 can be sent out under the action of cantilever beam short slab 10 well to be vibrated.Preferably, described
The length of cantilever beam long slab 2 is greater than the length for stating cantilever beam short slab 10.
Further, the length and width of cantilever beam long slab 2 is formulated with thick size according to actual demand, when its size is smaller, is hanged
The intrinsic frequency of arm beam length plate 2 is also higher.Cantilever beam long slab 2 is to provide movement for multiturn coil 8 there are purpose.Cantilever beam
The length and width of short slab 10 needs determine according to external environment frequency and the point of impingement with thick size, the purpose of cantilever beam short slab 10 be for
Collision mass block 9 provides low-frequency oscillation.Cantilever beam long slab 2 need to keep space parallel with the space of cantilever beam short slab 10.
Further, the intrinsic frequency of the cantilever beam long slab 2 is greater than the intrinsic frequency of the cantilever beam short slab 10, described
Frequency of the intrinsic frequency of cantilever beam short slab 10 close to the vibrational excitation.During wherein the intrinsic frequency of the length of cantilever plate is
High frequency, the frequency of the vibrational excitation are low frequency.This design can make cantilever beam short slab 10 non-under the action of vibrational excitation
Often readily start to vibrate, and in the case where the drive of cantilever beam short slab 10 states collision mass block and collides cantilever beam long slab 2,
Cantilever beam long slab 2 is easy to happen approximately to vibrate with its intrinsic frequency.Above-mentioned medium-high frequency is the frequency that frequency is 100Hz or more
Rate, low frequency are that frequency is frequency between 50-60Hz.
Further, as shown in Figure 1, the magnetic field generating member includes two pieces of permanent-magnet blocks 7,3, two pieces of permanent magnetics
Iron block is individually fixed in the inner surface of the top surface of the energy harvester shell and the inner surface of bottom surface, and described two pieces permanent
Magnet block 7,3 is located at the surface and underface of the multiturn coil 8.Permanent magnetic iron block 7 and permanent magnetic iron block 3 can also be located at
The inner surface of shell elsewhere, as long as guarantee multiturn coil movement when cutting permanent magnetic iron block 7 and with magnet block 3 generation magnetic
Feel line.Preferably, the pole N of permanent magnetic iron block 7 is extremely opposite with the S of permanent magnetic iron block 3, is certainly not limited to this mode, for example,
The N of the pole S of permanent magnetic iron block 7 and permanent magnetic iron block 3 is extremely opposite, the N of the pole N of permanent magnetic iron block 7 and permanent magnetic iron block 3 is extremely with respect to, permanent magnet
The pole S of block 7 is extremely opposite with the S of permanent magnetic iron block 3.When multiturn coil 8 is excited to do medium-high frequency longitudinal movement, produced on multiturn coil 8
Close coupling can mutually occur with cantilever beam long slab 2 for raw Lorentz force, and the effect of coupling reacts on the longitudinal fortune of multiturn coil 8
It is dynamic.
Further, as shown in Fig. 5 A, 5B, the section of the multiturn coil is round or rectangle, but be not restricted to that circle
Shape and rectangle.
When this low-frequency vibration electromagnetic energy collector is mounted in low-frequency vibration environment or is carried in human body, environment or
The vibration of human body hits cantilever beam long slab 2 by collision mass block 9, makes during the free end of cantilever beam long slab 2 ceaselessly longitudinally does
The vibration of high frequency, so that multiturn coil 8 be driven also to do identical medium-high frequency longitudinal movement, multiturn coil 8 is in permanent magnet 3,7
Spatial magnetic field among, therefore multiturn coil 8 generates transient state alternating current therewith, and transient state alternating current is output to negative immediately
It carries resistance 5 to consume, to be embodied as various electronic devices or sensor offer electric energy.Above-mentioned collector uses electromagnetic type principle,
The collection of energy structure carried out using cantilever beam vibration, easily obtains biggish induced current, and easy to make.In addition, above-mentioned reality
It applies example to intercouple by assembly structure and Lorentz force, effectively extends collection of energy frequency band, while load can also be passed through
Resistance value and multiturn coil resistance value adjusting realize that maximum average energy collects output, to increase substantially energy conversion effect
Rate.
Fig. 3 is the structural schematic diagram of the low-frequency vibration electromagnetic energy collector of another preferred embodiment of the invention；Fig. 4
For the perspective view of the low-frequency vibration electromagnetic energy collector of another preferred embodiment of the invention.The embodiment of the present invention low frequency
Vibrating electromagnetic energy collector includes energy harvester shell 11, cantilever beam long slab 12, cantilever beam short slab 20, collision mass block
19, magnetic field generating member 13,14 and multiturn coil 18, conducting wire 15,17 and load resistance 16.
The low-frequency vibration electromagnetic energy collector of another embodiment as shown in Figure 3,4, magnetic field generating member are permanent by two pieces
The superposition of magnet block 13,14 is formed, and the magnetic field generating member be fixed on it is opposite with the side of the fixation cantilever beam long slab
On the inner surface of side, it is preferable that the magnetic field generating member is corresponding with the fixed position of the cantilever beam long slab.Permanent magnetic iron block
13 and permanent magnetic iron block 14 can also be located at shell inner surface elsewhere, as long as guarantee multiturn coil 18 move when cutting forever
Magnet block 13 and the magnetic induction line generated with magnet block 14.Preferably, the pole S of the pole N of permanent magnetic iron block 13 and permanent magnetic iron block 14
Contact, is certainly not limited to this mode, for example, the pole S of permanent magnetic iron block 13 is contacted with the pole N of permanent magnetic iron block 14, permanent magnetic iron block
13 pole N is contacted with the pole N of permanent magnetic iron block 14, the pole S of permanent magnetic iron block 13 is contacted with the pole S of permanent magnetic iron block 14.Work as multiturn coil
18 when being excited to do medium-high frequency longitudinal movement, can generate lateral Lorentz force on multiturn coil 18, does not send out with cantilever beam long slab 12
Raw coupling.
The other structures of the low-frequency vibration electromagnetic energy collector of this embodiment are identical as a upper embodiment, no longer superfluous here
It states.
The mechanical energy that low-frequency vibration in ambient enviroment generates is converted into electric energy by electromagnetic energy collector of the invention.
Under low-frequency vibration excitation, the collision mass block of low-frequency vibration can collide with cantilever beam long slab specific position, after collision
Cantilever beam long slab can generate medium-high frequency vibration, and the multiturn coil for being fixed on cantilever beam long slab free end is driven also to occur therewith
The vibration of high frequency.It is in due to multiturn coil in the external electromagnetic field of permanent magnet generation, when cutting magnetic induction occurs for multiturn coil
When line moves, transient state alternating current energy can be generated in multiturn coil, can be exported to load resistance consumption or energy-storage units
Storage.Electromagnetic energy collector of the invention realizes the collection of low-frequency vibration electromagnetic energy, is not required to receive as capacitative energy
Preliminary filling power supply is separately provided in storage like that, is also not required to the work complexity processed as piezoelectric type energy collector, realizes electromagnetic type energy
The passive collected is measured, and manufacture craft is simplified, while greatly improving electromagnetic type cantilever beam by way of collision
The low frequency energy of structure collects bandwidth.
Collector of the invention can be used to supply to various mobile electronic devices, wireless sensor and wearable device etc.
Electricity gets rid of battery powered limitation.
It, can preferential aluminium work to guarantee that cantilever beam long slab 2,12 has enough elastic deformations in above-mentioned two embodiment
Also it can be used silicon as cantilever beam long slab 2,12 materials if micro manufacturing demand smaller szie for the material of cantilever beam long slab 2,12
Material.To guarantee that cantilever beam short slab 10,20 has enough elastic deformations, it can preferentially select brass as cantilever beam short slab 10,20
The material as cantilever beam short slab 10,20 such as SU8 or benzocyclobutene can be used if micro manufacturing demand smaller szie in material.
Raw material of the available copper as multiturn coil 8,18, the geometry of multiturn coil 8,18 can be fabricated to round or rectangle.It can
Use copper as the raw material of collision mass block 9,19, the lower end of collision mass block 9,19 can keep enough with cantilever beam long slab 2,12
Small distance, the collection of energy of space length according to demand are calculated to determine.NdFeB permanent electric magnetic iron block 3,7,13,14 is selected,
The space length of upper and lower two pieces of electromagnet blocks 3,7 keeps zone of reasonableness as far as possible；Or left side electromagnet block 13,14 and cantilever beam long slab
2,12 free end space lengths keep zone of reasonableness as far as possible.5 value of load resistance should determine that measuring method is according to device by measuring and calculating
Average collection energy, 16 value of load resistance should be close with 18 resistance value of multiturn coil.
The above embodiments are only used to illustrate the present invention, rather than limitation of the present invention.Although referring to embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that, to technical solution of the present invention carry out it is various combination,
Modification or equivalent replacement should all cover and want in right of the invention without departure from the spirit and scope of technical solution of the present invention
It asks in range.
Claims (8)
1. a kind of low-frequency vibration electromagnetic energy collector, which is characterized in that the low-frequency vibration electromagnetic energy collector includes energy
Measure collector shell, cantilever beam long slab, cantilever beam short slab, collision mass block, magnetic field generating member and multiturn coil；
The inner surface of the one side of the energy harvester shell, the length of cantilever are fixed in one end of the cantilever beam long slab
The other end of plate is fixed with the multiturn coil；The side of the fixed cantilever beam long slab is fixed in one end of the cantilever beam short slab
The inner surface in face, the cantilever beam short slab are located at the surface of the cantilever beam long slab, and the cantilever beam short slab with it is described
Cantilever beam long slab is parallel, and the lower face of the other end of the cantilever beam short slab is fixed with the collision mass block, the collision matter
Gauge block is apart from the cantilever beam long slab preset distance；The magnetic field generating member is fixed on the interior table of the energy harvester shell
Face, and the magnetic induction line that the magnetic field generating member generates is cut when multiturn coil movement；
Vibration environment provide vibrational excitation to the energy harvester shell, the cantilever beam short slab with the vibrational excitation simultaneously
It vibrates, the collision mass block collides to the predetermined position of the cantilever beam long slab, produces the cantilever beam long slab
The raw vibration close to itself intrinsic frequency, the multiturn coil are vibrated with frequency identical with the cantilever beam long slab, are cut
The magnetic induction line generates electric signal；
Wherein, the low-frequency vibration electromagnetic energy collector further includes conducting wire, and the conducting wire is connect with the multiturn coil, is used for
The electric signal export that the multiturn coil is generated；
The low-frequency vibration electromagnetic energy collector further includes load resistance, and the load resistance passes through the conducting wire and described more
Circle coils from parallel connection of coils；
Resistance value of the resistance value of the load resistance close to the multiturn coil.
2. low-frequency vibration electromagnetic energy collector according to claim 1, which is characterized in that the cantilever beam long slab is fixed
Where it at geometric center position of side.
3. low-frequency vibration electromagnetic energy collector according to claim 1, which is characterized in that the length of the cantilever beam long slab
Degree is greater than the length for stating cantilever beam short slab.
4. low-frequency vibration electromagnetic energy collector according to claim 1, which is characterized in that the cantilever beam long slab is consolidated
There is frequency to be greater than the intrinsic frequency of the cantilever beam short slab, the intrinsic frequency of the cantilever beam short slab is close to the vibrational excitation
Frequency.
5. low-frequency vibration electromagnetic energy collector according to claim 1, which is characterized in that the cantilever beam long slab is consolidated
Having frequency is medium-high frequency, and the frequency of the vibrational excitation is low frequency.
6. low-frequency vibration electromagnetic energy collector according to claim 1, which is characterized in that the magnetic field generating member includes
Two pieces of permanent-magnet blocks, two pieces of permanent-magnet blocks be individually fixed in the top surface of the energy harvester shell inner surface and
The inner surface of bottom surface, and two pieces of permanent-magnet blocks are located at the surface and underface of the multiturn coil.
7. low-frequency vibration electromagnetic energy collector according to claim 1, which is characterized in that the magnetic field generating member is by one
Permanent-magnet block more than block is superimposed to be formed, and the magnetic field generating member is fixed on opposite with the side of the fixed cantilever beam long slab
Side inner surface on, and the magnetic field generating member and the cantilever beam long slab it is fixed position it is corresponding.
8. low-frequency vibration electromagnetic energy collector according to claim 1, which is characterized in that the multiturn coil is circle
Or rectangle.
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| CN109217608B (en) * | 2017-07-06 | 2024-06-07 | 深圳市柔纬联科技有限公司 | Multi-point collision low-frequency electromagnetic energy collection system |
| CN109936307B (en) * | 2019-04-22 | 2024-08-13 | 清华大学 | Hybrid energy collector |
| CN110380644B (en) * | 2019-07-15 | 2020-11-27 | 北京工业大学 | Frequency-raising adjustable compact piezoelectric energy acquisition device |
| CN111697878B (en) * | 2020-07-23 | 2021-05-25 | 上海大学 | Low-frequency collision mode sole energy collector based on piezoelectric stack |
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| CN101399484A (en) * | 2008-10-30 | 2009-04-01 | 上海交通大学 | Static coil type micromechanical electromagnetic vibration energy collector based on frequency boost conversion |
| CN102751910A (en) * | 2012-06-19 | 2012-10-24 | 清华大学 | Up-conversion vibration energy collecting device suitable for collecting low-frequency vibration energy |
| CN103248192A (en) * | 2013-05-30 | 2013-08-14 | 青岛理工大学 | Power Generation and Passive Electromagnetic Damping Control System of Vibrating Plate Beam Structure |
| CN104242725A (en) * | 2013-06-13 | 2014-12-24 | 中国科学院上海微系统与信息技术研究所 | Two-level vibrating type broadband energy harvester |
| CN104104205A (en) * | 2014-07-01 | 2014-10-15 | 南京航空航天大学 | Cantilever vibration energy acquirer for automobile tire pressure monitoring |
| CN104158440A (en) * | 2014-09-05 | 2014-11-19 | 苏州大学 | Frequency-raising type vibration energy collecting system and collecting method |
| CN104702147A (en) * | 2015-04-03 | 2015-06-10 | 南京信息工程大学 | Combined type broadband vibration energy collector |
| CN104836476A (en) * | 2015-04-29 | 2015-08-12 | 南京邮电大学 | Piezoelectric vibration energy collector |
| CN104811091A (en) * | 2015-05-19 | 2015-07-29 | 重庆大学 | Multi-directional vibration energy harvester based on annular Halbach array |
| CN205249083U (en) * | 2015-11-26 | 2016-05-18 | 清华大学 | Low frequency vibration electromagnetic energy collector |
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